Tread portion of an automobile tire



FIG. 1 is a perspective view of the top, front and left side of a treadportion of an automobile tire showing my new design;

FIG. 2 is a front elevational view thereof, the top and bottom planviews being identical thereto;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is an enlarged fragmentary front elevational view thereof; and,

FIG. 7 is an enlarged cross-sectional view taken along the line 7—7 inFIG. 6.

The elements shown in broken lines are for illustrative purposes onlyand form no part of the claimed design.

The ornamental design for a tread portion of an automobile tire, asshown and described.